How to use: 5 times to turn on the power Or and hold for 5 seconds to start, select the green-blue-red indicator light (low temperature-medium temperature-high temperature) in turn, and then 5 times to turn off Easy to Operate: Soldering iron kit just long for 5 seconds to turn on/off, short to enter temperature selection. There is a layer of heat insulation on the to prevent the iron from burning your hands during operation, and the TPE handle is comfortable and non-slip Replaceable Soldering Heads: Soldering iron is equipped with 3 kinds of soldering iron heads: conical head, flat round head, horseshoe head, to meet your different working needs, the heating time is about 10 seconds, which improves the working efficiency. Cordless Soldering Iron: Soldering kit built-in battery, the wire, the control is more free and convenient. Equipped with TYPE-C charging connector, it can be used continuously for about 30 minutes after a full charge, and a full charge takes about 2-3 hours. Temperature range: 330-450 degrees Power: 8-10W : 10 minutes Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Black Material:Metal Package Contents: 1x soldering iron 1x soldering iron head 1x Stand 1x tin wire (color random,don't accept the specified color) 1x usb cable 1x English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.